Home / 1,413,008.20-2,116,401.90-989,993.80

Finding the Fourth Proportional to 1,413,008.20, 2,116,401.90 and 989,993.80

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Solution

The fourth proportional to 1,413,008.20, 2,116,401.90 and 989,993.80 is: 1,482,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,008.20 : 2,116,401.90 = 989,993.80 : x
  2. Step 2: Convert to fraction form
    1,413,008.20/2,116,401.90 = 989,993.80/x
  3. Step 3: Cross multiply
    1,413,008.20x = 2,116,401.90 × 989,993.80
  4. Step 4: Simplify right side
    1,413,008.20x = 2,095,224,759,308.22
  5. Step 5: Solve for x
    x = 2,095,224,759,308.22/1,413,008.20
  6. Step 6: Final answer
    x = 1,482,811.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.